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Merge tag 'pull-block-2023-09-01' of https://gitlab.com/hreitz/qemu into staging
[mirror_qemu.git] / hmp-commands.hx
CommitLineData
3c95fdef
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1HXCOMM Use DEFHEADING() to define headings in both help text and rST.
2HXCOMM Text between SRST and ERST is copied to the rST version and
3HXCOMM discarded from C version.
2313086a
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4HXCOMM DEF(command, args, callback, arg_string, help) is used to construct
5HXCOMM monitor commands
3c95fdef 6HXCOMM HXCOMM can be used for comments, discarded from both rST and C.
2313086a 7
2313086a 8
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9 {
10 .name = "help|?",
129be006 11 .args_type = "name:S?",
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12 .params = "[cmd]",
13 .help = "show the help",
cbf81997 14 .cmd = hmp_help,
31785f1b 15 .flags = "p",
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16 },
17
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18SRST
19``help`` or ``?`` [*cmd*]
20 Show the help for all commands or just for command *cmd*.
21ERST
2313086a 22
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23 {
24 .name = "commit",
25 .args_type = "device:B",
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26 .params = "device|all",
27 .help = "commit changes to the disk images (if -snapshot is used) or backing files",
2b9e3576 28 .cmd = hmp_commit,
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29 },
30
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31SRST
32``commit``
33 Commit changes to the disk images (if -snapshot is used) or backing files.
34 If the backing file is smaller than the snapshot, then the backing file
35 will be resized to be the same size as the snapshot. If the snapshot is
36 smaller than the backing file, the backing file will not be truncated.
37 If you want the backing file to match the size of the smaller snapshot,
38 you can safely truncate it yourself once the commit operation successfully
39 completes.
40ERST
2313086a 41
d7f9b689 42 {
ff688cd2 43 .name = "quit|q",
d7f9b689 44 .args_type = "",
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45 .params = "",
46 .help = "quit the emulator",
2b9e3576 47 .cmd = hmp_quit,
ebe34444 48 .flags = "p",
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49 },
50
a6b30bca 51SRST
ff688cd2 52``quit`` or ``q``
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53 Quit the emulator.
54ERST
8e8581e6
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55
56 {
57 .name = "exit_preconfig",
58 .args_type = "",
59 .params = "",
60 .help = "exit the preconfig state",
61 .cmd = hmp_exit_preconfig,
62 .flags = "p",
63 },
64
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65SRST
66``exit_preconfig``
67 This command makes QEMU exit the preconfig state and proceed with
68 VM initialization using configuration data provided on the command line
69 and via the QMP monitor during the preconfig state. The command is only
70 available during the preconfig state (i.e. when the --preconfig command
71 line option was in use).
72ERST
2313086a 73
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74 {
75 .name = "block_resize",
76 .args_type = "device:B,size:o",
77 .params = "device size",
78 .help = "resize a block image",
2b9e3576 79 .cmd = hmp_block_resize,
eb94b81a 80 .coroutine = true,
f55ba801 81 .flags = "p",
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82 },
83
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84SRST
85``block_resize``
86 Resize a block image while a guest is running. Usually requires guest
87 action to see the updated size. Resize to a lower size is supported,
88 but should be used with extreme caution. Note that this command only
89 resizes image files, it can not resize block devices like LVM volumes.
90ERST
6d4a2b3a 91
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92 {
93 .name = "block_stream",
c83c66c3
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94 .args_type = "device:B,speed:o?,base:s?",
95 .params = "device [speed [base]]",
12bd451f 96 .help = "copy data from a backing file into a block device",
2b9e3576 97 .cmd = hmp_block_stream,
f55ba801 98 .flags = "p",
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99 },
100
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101SRST
102``block_stream``
103 Copy data from a backing file into a block device.
104ERST
2d47c6e9
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105
106 {
107 .name = "block_job_set_speed",
882ec7ce
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108 .args_type = "device:B,speed:o",
109 .params = "device speed",
2d47c6e9 110 .help = "set maximum speed for a background block operation",
2b9e3576 111 .cmd = hmp_block_job_set_speed,
f55ba801 112 .flags = "p",
2d47c6e9
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113 },
114
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115SRST
116``block_job_set_speed``
117 Set maximum speed for a background block operation.
118ERST
370521a1
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119
120 {
121 .name = "block_job_cancel",
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122 .args_type = "force:-f,device:B",
123 .params = "[-f] device",
124 .help = "stop an active background block operation (use -f"
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125 "\n\t\t\t if you want to abort the operation immediately"
126 "\n\t\t\t instead of keep running until data is in sync)",
2b9e3576 127 .cmd = hmp_block_job_cancel,
f55ba801 128 .flags = "p",
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129 },
130
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131SRST
132``block_job_cancel``
133 Stop an active background block operation (streaming, mirroring).
134ERST
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135
136 {
137 .name = "block_job_complete",
138 .args_type = "device:B",
139 .params = "device",
140 .help = "stop an active background block operation",
2b9e3576 141 .cmd = hmp_block_job_complete,
f55ba801 142 .flags = "p",
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143 },
144
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145SRST
146``block_job_complete``
147 Manually trigger completion of an active background block operation.
148 For mirroring, this will switch the device to the destination path.
149ERST
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150
151 {
152 .name = "block_job_pause",
153 .args_type = "device:B",
154 .params = "device",
155 .help = "pause an active background block operation",
2b9e3576 156 .cmd = hmp_block_job_pause,
f55ba801 157 .flags = "p",
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158 },
159
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160SRST
161``block_job_pause``
162 Pause an active block streaming operation.
163ERST
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164
165 {
166 .name = "block_job_resume",
167 .args_type = "device:B",
168 .params = "device",
169 .help = "resume a paused background block operation",
2b9e3576 170 .cmd = hmp_block_job_resume,
f55ba801 171 .flags = "p",
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172 },
173
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174SRST
175``block_job_resume``
176 Resume a paused block streaming operation.
177ERST
6d4a2b3a 178
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179 {
180 .name = "eject",
78d714e0 181 .args_type = "force:-f,device:B",
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182 .params = "[-f] device",
183 .help = "eject a removable medium (use -f to force it)",
2b9e3576 184 .cmd = hmp_eject,
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185 },
186
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187SRST
188``eject [-f]`` *device*
189 Eject a removable medium (use -f to force it).
190ERST
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191
192 {
193 .name = "drive_del",
f7bdc41a 194 .args_type = "id:B",
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195 .params = "device",
196 .help = "remove host block device",
2b9e3576 197 .cmd = hmp_drive_del,
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198 },
199
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200SRST
201``drive_del`` *device*
202 Remove host block device. The result is that guest generated IO is no longer
203 submitted against the host device underlying the disk. Once a drive has
204 been deleted, the QEMU Block layer returns -EIO which results in IO
205 errors in the guest for applications that are reading/writing to the device.
206 These errors are always reported to the guest, regardless of the drive's error
207 actions (drive options rerror, werror).
208ERST
2313086a 209
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210 {
211 .name = "change",
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212 .args_type = "device:B,force:-f,target:F,arg:s?,read-only-mode:s?",
213 .params = "device [-f] filename [format [read-only-mode]]",
214 .help = "change a removable medium, optional format, use -f to force the operation",
2b9e3576 215 .cmd = hmp_change,
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216 },
217
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218SRST
219``change`` *device* *setting*
220 Change the configuration of a device.
221
80dd5aff 222 ``change`` *diskdevice* [-f] *filename* [*format* [*read-only-mode*]]
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223 Change the medium for a removable disk device to point to *filename*. eg::
224
225 (qemu) change ide1-cd0 /path/to/some.iso
226
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227 ``-f``
228 forces the operation even if the guest has locked the tray.
229
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230 *format* is optional.
231
232 *read-only-mode* may be used to change the read-only status of the device.
233 It accepts the following values:
234
235 retain
236 Retains the current status; this is the default.
237
238 read-only
239 Makes the device read-only.
240
241 read-write
242 Makes the device writable.
243
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244 ``change vnc password`` [*password*]
245
246 Change the password associated with the VNC server. If the new password
247 is not supplied, the monitor will prompt for it to be entered. VNC
248 passwords are only significant up to 8 letters. eg::
249
250 (qemu) change vnc password
251 Password: ********
252
253ERST
2313086a 254
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255 {
256 .name = "screendump",
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257 .args_type = "filename:F,format:-fs,device:s?,head:i?",
258 .params = "filename [-f format] [device [head]]",
259 .help = "save screen from head 'head' of display device 'device'"
260 "in specified format 'format' as image 'filename'."
261 "Currently only 'png' and 'ppm' formats are supported.",
262 .cmd = hmp_screendump,
0d9b90ce 263 .coroutine = true,
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264 },
265
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266SRST
267``screendump`` *filename*
268 Save screen into PPM image *filename*.
269ERST
2313086a 270
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271 {
272 .name = "logfile",
273 .args_type = "filename:F",
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274 .params = "filename",
275 .help = "output logs to 'filename'",
2b9e3576 276 .cmd = hmp_logfile,
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277 },
278
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279SRST
280``logfile`` *filename*
281 Output logs to *filename*.
282ERST
2313086a 283
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284 {
285 .name = "trace-event",
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286 .args_type = "name:s,option:b,vcpu:i?",
287 .params = "name on|off [vcpu]",
288 .help = "changes status of a specific trace event "
289 "(vcpu: vCPU to set, default is all)",
2b9e3576 290 .cmd = hmp_trace_event,
987bd270 291 .command_completion = trace_event_completion,
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292 },
293
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294SRST
295``trace-event``
296 changes status of a trace event
297ERST
c5ceb523 298
c45a8168 299#if defined(CONFIG_TRACE_SIMPLE)
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300 {
301 .name = "trace-file",
302 .args_type = "op:s?,arg:F?",
303 .params = "on|off|flush|set [arg]",
304 .help = "open, close, or flush trace file, or set a new file name",
2b9e3576 305 .cmd = hmp_trace_file,
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306 },
307
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308SRST
309``trace-file on|off|flush``
310 Open, close, or flush the trace file. If no argument is given, the
311 status of the trace file is displayed.
312ERST
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313#endif
314
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315 {
316 .name = "log",
317 .args_type = "items:s",
d7f9b689 318 .params = "item1[,...]",
989b697d 319 .help = "activate logging of the specified items",
2b9e3576 320 .cmd = hmp_log,
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321 },
322
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323SRST
324``log`` *item1*\ [,...]
325 Activate logging of the specified items.
326ERST
2313086a 327
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328 {
329 .name = "savevm",
330 .args_type = "name:s?",
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331 .params = "tag",
332 .help = "save a VM snapshot. If no tag is provided, a new snapshot is created",
2b9e3576 333 .cmd = hmp_savevm,
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334 },
335
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336SRST
337``savevm`` *tag*
338 Create a snapshot of the whole virtual machine. If *tag* is
339 provided, it is used as human readable identifier. If there is already
340 a snapshot with the same tag, it is replaced. More info at
341 :ref:`vm_005fsnapshots`.
342
343 Since 4.0, savevm stopped allowing the snapshot id to be set, accepting
344 only *tag* as parameter.
345ERST
2313086a 346
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347 {
348 .name = "loadvm",
349 .args_type = "name:s",
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350 .params = "tag",
351 .help = "restore a VM snapshot from its tag",
2b9e3576 352 .cmd = hmp_loadvm,
b21631f3 353 .command_completion = loadvm_completion,
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354 },
355
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356SRST
357``loadvm`` *tag*
358 Set the whole virtual machine to the snapshot identified by the tag
359 *tag*.
360
361 Since 4.0, loadvm stopped accepting snapshot id as parameter.
362ERST
2313086a 363
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364 {
365 .name = "delvm",
366 .args_type = "name:s",
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367 .params = "tag",
368 .help = "delete a VM snapshot from its tag",
2b9e3576 369 .cmd = hmp_delvm,
b21631f3 370 .command_completion = delvm_completion,
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371 },
372
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373SRST
374``delvm`` *tag*
375 Delete the snapshot identified by *tag*.
376
377 Since 4.0, delvm stopped deleting snapshots by snapshot id, accepting
378 only *tag* as parameter.
379ERST
2313086a 380
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381 {
382 .name = "one-insn-per-tb",
383 .args_type = "option:s?",
384 .params = "[on|off]",
385 .help = "run emulation with one guest instruction per translation block",
386 .cmd = hmp_one_insn_per_tb,
387 },
388
389SRST
390``one-insn-per-tb [off]``
391 Run the emulation with one guest instruction per translation block.
392 This slows down emulation a lot, but can be useful in some situations,
393 such as when trying to analyse the logs produced by the ``-d`` option.
394 This only has an effect when using TCG, not with KVM or other accelerators.
395
396 If called with option off, the emulation returns to normal mode.
397ERST
398
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399 {
400 .name = "singlestep",
401 .args_type = "option:s?",
d7f9b689 402 .params = "[on|off]",
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403 .help = "deprecated synonym for one-insn-per-tb",
404 .cmd = hmp_one_insn_per_tb,
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405 },
406
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407SRST
408``singlestep [off]``
e9ccfdd9 409 This is a deprecated synonym for the one-insn-per-tb command.
a6b30bca 410ERST
2313086a 411
d7f9b689 412 {
de4cf848 413 .name = "stop|s",
d7f9b689 414 .args_type = "",
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415 .params = "",
416 .help = "stop emulation",
2b9e3576 417 .cmd = hmp_stop,
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418 },
419
a6b30bca 420SRST
de4cf848 421``stop`` or ``s``
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422 Stop emulation.
423ERST
2313086a 424
d7f9b689 425 {
ff688cd2 426 .name = "cont|c",
d7f9b689 427 .args_type = "",
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428 .params = "",
429 .help = "resume emulation",
2b9e3576 430 .cmd = hmp_cont,
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431 },
432
a6b30bca 433SRST
ff688cd2 434``cont`` or ``c``
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435 Resume emulation.
436ERST
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437
438 {
439 .name = "system_wakeup",
440 .args_type = "",
441 .params = "",
442 .help = "wakeup guest from suspend",
2b9e3576 443 .cmd = hmp_system_wakeup,
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444 },
445
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446SRST
447``system_wakeup``
448 Wakeup guest from suspend.
449ERST
2313086a 450
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451 {
452 .name = "gdbserver",
453 .args_type = "device:s?",
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454 .params = "[device]",
455 .help = "start gdbserver on given device (default 'tcp::1234'), stop with 'none'",
2b9e3576 456 .cmd = hmp_gdbserver,
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457 },
458
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459SRST
460``gdbserver`` [*port*]
461 Start gdbserver session (default *port*\=1234)
462ERST
2313086a 463
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464 {
465 .name = "x",
466 .args_type = "fmt:/,addr:l",
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467 .params = "/fmt addr",
468 .help = "virtual memory dump starting at 'addr'",
2b9e3576 469 .cmd = hmp_memory_dump,
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470 },
471
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472SRST
473``x/``\ *fmt* *addr*
474 Virtual memory dump starting at *addr*.
475ERST
2313086a 476
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477 {
478 .name = "xp",
479 .args_type = "fmt:/,addr:l",
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480 .params = "/fmt addr",
481 .help = "physical memory dump starting at 'addr'",
2b9e3576 482 .cmd = hmp_physical_memory_dump,
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483 },
484
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485SRST
486``xp /``\ *fmt* *addr*
487 Physical memory dump starting at *addr*.
488
489 *fmt* is a format which tells the command how to format the
490 data. Its syntax is: ``/{count}{format}{size}``
491
492 *count*
493 is the number of items to be dumped.
494 *format*
495 can be x (hex), d (signed decimal), u (unsigned decimal), o (octal),
496 c (char) or i (asm instruction).
497 *size*
498 can be b (8 bits), h (16 bits), w (32 bits) or g (64 bits). On x86,
499 ``h`` or ``w`` can be specified with the ``i`` format to
500 respectively select 16 or 32 bit code instruction size.
501
502 Examples:
503
504 Dump 10 instructions at the current instruction pointer::
505
506 (qemu) x/10i $eip
507 0x90107063: ret
508 0x90107064: sti
509 0x90107065: lea 0x0(%esi,1),%esi
510 0x90107069: lea 0x0(%edi,1),%edi
511 0x90107070: ret
512 0x90107071: jmp 0x90107080
513 0x90107073: nop
514 0x90107074: nop
515 0x90107075: nop
516 0x90107076: nop
517
518 Dump 80 16 bit values at the start of the video memory::
519
520 (qemu) xp/80hx 0xb8000
521 0x000b8000: 0x0b50 0x0b6c 0x0b65 0x0b78 0x0b38 0x0b36 0x0b2f 0x0b42
522 0x000b8010: 0x0b6f 0x0b63 0x0b68 0x0b73 0x0b20 0x0b56 0x0b47 0x0b41
523 0x000b8020: 0x0b42 0x0b69 0x0b6f 0x0b73 0x0b20 0x0b63 0x0b75 0x0b72
524 0x000b8030: 0x0b72 0x0b65 0x0b6e 0x0b74 0x0b2d 0x0b63 0x0b76 0x0b73
525 0x000b8040: 0x0b20 0x0b30 0x0b35 0x0b20 0x0b4e 0x0b6f 0x0b76 0x0b20
526 0x000b8050: 0x0b32 0x0b30 0x0b30 0x0b33 0x0720 0x0720 0x0720 0x0720
527 0x000b8060: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
528 0x000b8070: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
529 0x000b8080: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
530 0x000b8090: 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720 0x0720
531
532ERST
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533
534 {
535 .name = "gpa2hva",
536 .args_type = "addr:l",
537 .params = "addr",
538 .help = "print the host virtual address corresponding to a guest physical address",
539 .cmd = hmp_gpa2hva,
540 },
541
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542SRST
543``gpa2hva`` *addr*
544 Print the host virtual address at which the guest's physical address *addr*
545 is mapped.
546ERST
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547
548#ifdef CONFIG_LINUX
549 {
550 .name = "gpa2hpa",
551 .args_type = "addr:l",
552 .params = "addr",
553 .help = "print the host physical address corresponding to a guest physical address",
554 .cmd = hmp_gpa2hpa,
555 },
556#endif
557
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558SRST
559``gpa2hpa`` *addr*
560 Print the host physical address at which the guest's physical address *addr*
561 is mapped.
562ERST
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563
564 {
565 .name = "gva2gpa",
566 .args_type = "addr:l",
567 .params = "addr",
568 .help = "print the guest physical address corresponding to a guest virtual address",
569 .cmd = hmp_gva2gpa,
570 },
571
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572SRST
573``gva2gpa`` *addr*
574 Print the guest physical address at which the guest's virtual address *addr*
575 is mapped based on the mapping for the current CPU.
576ERST
2313086a 577
d7f9b689 578 {
ff688cd2 579 .name = "print|p",
d7f9b689 580 .args_type = "fmt:/,val:l",
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581 .params = "/fmt expr",
582 .help = "print expression value (use $reg for CPU register access)",
cbf81997 583 .cmd = hmp_print,
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584 },
585
a6b30bca 586SRST
ff688cd2 587``print`` or ``p/``\ *fmt* *expr*
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588 Print expression value. Only the *format* part of *fmt* is
589 used.
590ERST
2313086a 591
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592 {
593 .name = "i",
594 .args_type = "fmt:/,addr:i,index:i.",
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595 .params = "/fmt addr",
596 .help = "I/O port read",
2b9e3576 597 .cmd = hmp_ioport_read,
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598 },
599
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600SRST
601``i/``\ *fmt* *addr* [.\ *index*\ ]
602 Read I/O port.
603ERST
2313086a 604
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605 {
606 .name = "o",
607 .args_type = "fmt:/,addr:i,val:i",
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608 .params = "/fmt addr value",
609 .help = "I/O port write",
2b9e3576 610 .cmd = hmp_ioport_write,
d7f9b689
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611 },
612
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613SRST
614``o/``\ *fmt* *addr* *val*
615 Write to I/O port.
616ERST
2313086a 617
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LC
618 {
619 .name = "sendkey",
2ef20c15 620 .args_type = "keys:s,hold-time:i?",
d7f9b689
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621 .params = "keys [hold_ms]",
622 .help = "send keys to the VM (e.g. 'sendkey ctrl-alt-f1', default hold time=100 ms)",
2b9e3576 623 .cmd = hmp_sendkey,
29136cd8 624 .command_completion = sendkey_completion,
d7f9b689
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625 },
626
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627SRST
628``sendkey`` *keys*
629 Send *keys* to the guest. *keys* could be the name of the
630 key or the raw value in hexadecimal format. Use ``-`` to press
631 several keys simultaneously. Example::
632
633 sendkey ctrl-alt-f1
634
635 This command is useful to send keys that your graphical user interface
636 intercepts at low level, such as ``ctrl-alt-f1`` in X Window.
637ERST
dd12e1bb
EC
638 {
639 .name = "sync-profile",
640 .args_type = "op:s?",
641 .params = "[on|off|reset]",
642 .help = "enable, disable or reset synchronization profiling. "
643 "With no arguments, prints whether profiling is on or off.",
644 .cmd = hmp_sync_profile,
645 },
646
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647SRST
648``sync-profile [on|off|reset]``
649 Enable, disable or reset synchronization profiling. With no arguments, prints
650 whether profiling is on or off.
651ERST
2313086a 652
d7f9b689
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653 {
654 .name = "system_reset",
655 .args_type = "",
d7f9b689
LC
656 .params = "",
657 .help = "reset the system",
2b9e3576 658 .cmd = hmp_system_reset,
d7f9b689
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659 },
660
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661SRST
662``system_reset``
663 Reset the system.
664ERST
2313086a 665
d7f9b689
LC
666 {
667 .name = "system_powerdown",
668 .args_type = "",
d7f9b689
LC
669 .params = "",
670 .help = "send system power down event",
2b9e3576 671 .cmd = hmp_system_powerdown,
d7f9b689
LC
672 },
673
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674SRST
675``system_powerdown``
676 Power down the system (if supported).
677ERST
2313086a 678
d7f9b689
LC
679 {
680 .name = "sum",
681 .args_type = "start:i,size:i",
d7f9b689
LC
682 .params = "addr size",
683 .help = "compute the checksum of a memory region",
2b9e3576 684 .cmd = hmp_sum,
d7f9b689
LC
685 },
686
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687SRST
688``sum`` *addr* *size*
689 Compute the checksum of a memory region.
690ERST
2313086a 691
d7f9b689
LC
692 {
693 .name = "device_add",
c7e4e8ce
MA
694 .args_type = "device:O",
695 .params = "driver[,prop=value][,...]",
d7f9b689 696 .help = "add device, like -device on the command line",
2b9e3576 697 .cmd = hmp_device_add,
2da1b3ab 698 .command_completion = device_add_completion,
d7f9b689
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699 },
700
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701SRST
702``device_add`` *config*
703 Add device.
704ERST
3418bd25 705
d7f9b689
LC
706 {
707 .name = "device_del",
708 .args_type = "id:s",
d7f9b689
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709 .params = "device",
710 .help = "remove device",
2b9e3576 711 .cmd = hmp_device_del,
2da1b3ab 712 .command_completion = device_del_completion,
d7f9b689
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713 },
714
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715SRST
716``device_del`` *id*
717 Remove device *id*. *id* may be a short ID
718 or a QOM object path.
719ERST
3418bd25 720
d7f9b689
LC
721 {
722 .name = "cpu",
723 .args_type = "index:i",
d7f9b689
LC
724 .params = "index",
725 .help = "set the default CPU",
2b9e3576 726 .cmd = hmp_cpu,
d7f9b689 727 },
3418bd25 728
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729SRST
730``cpu`` *index*
731 Set the default CPU.
732ERST
2313086a 733
d7f9b689
LC
734 {
735 .name = "mouse_move",
736 .args_type = "dx_str:s,dy_str:s,dz_str:s?",
d7f9b689
LC
737 .params = "dx dy [dz]",
738 .help = "send mouse move events",
2b9e3576 739 .cmd = hmp_mouse_move,
d7f9b689
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740 },
741
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742SRST
743``mouse_move`` *dx* *dy* [*dz*]
744 Move the active mouse to the specified coordinates *dx* *dy*
745 with optional scroll axis *dz*.
746ERST
2313086a 747
d7f9b689
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748 {
749 .name = "mouse_button",
750 .args_type = "button_state:i",
d7f9b689
LC
751 .params = "state",
752 .help = "change mouse button state (1=L, 2=M, 4=R)",
2b9e3576 753 .cmd = hmp_mouse_button,
d7f9b689
LC
754 },
755
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756SRST
757``mouse_button`` *val*
758 Change the active mouse button state *val* (1=L, 2=M, 4=R).
759ERST
2313086a 760
d7f9b689
LC
761 {
762 .name = "mouse_set",
763 .args_type = "index:i",
d7f9b689
LC
764 .params = "index",
765 .help = "set which mouse device receives events",
2b9e3576 766 .cmd = hmp_mouse_set,
d7f9b689
LC
767 },
768
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769SRST
770``mouse_set`` *index*
771 Set which mouse device receives events at given *index*, index
772 can be obtained with::
773
774 info mice
775
776ERST
2313086a 777
d7f9b689
LC
778 {
779 .name = "wavcapture",
f0b9f36d
KZ
780 .args_type = "path:F,audiodev:s,freq:i?,bits:i?,nchannels:i?",
781 .params = "path audiodev [frequency [bits [channels]]]",
d7f9b689 782 .help = "capture audio to a wave file (default frequency=44100 bits=16 channels=2)",
2b9e3576 783 .cmd = hmp_wavcapture,
d7f9b689 784 },
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785SRST
786``wavcapture`` *filename* *audiodev* [*frequency* [*bits* [*channels*]]]
787 Capture audio into *filename* from *audiodev*, using sample rate
788 *frequency* bits per sample *bits* and number of channels
789 *channels*.
790
791 Defaults:
792
793 - Sample rate = 44100 Hz - CD quality
794 - Bits = 16
795 - Number of channels = 2 - Stereo
796ERST
2313086a 797
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LC
798 {
799 .name = "stopcapture",
800 .args_type = "n:i",
d7f9b689
LC
801 .params = "capture index",
802 .help = "stop capture",
2b9e3576 803 .cmd = hmp_stopcapture,
d7f9b689 804 },
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805SRST
806``stopcapture`` *index*
807 Stop capture with a given *index*, index can be obtained with::
808
809 info capture
810
811ERST
2313086a 812
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813 {
814 .name = "memsave",
815 .args_type = "val:l,size:i,filename:s",
d7f9b689
LC
816 .params = "addr size file",
817 .help = "save to disk virtual memory dump starting at 'addr' of size 'size'",
2b9e3576 818 .cmd = hmp_memsave,
d7f9b689
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819 },
820
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821SRST
822``memsave`` *addr* *size* *file*
823 save to disk virtual memory dump starting at *addr* of size *size*.
824ERST
2313086a 825
d7f9b689
LC
826 {
827 .name = "pmemsave",
828 .args_type = "val:l,size:i,filename:s",
d7f9b689
LC
829 .params = "addr size file",
830 .help = "save to disk physical memory dump starting at 'addr' of size 'size'",
2b9e3576 831 .cmd = hmp_pmemsave,
d7f9b689
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832 },
833
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834SRST
835``pmemsave`` *addr* *size* *file*
836 save to disk physical memory dump starting at *addr* of size *size*.
837ERST
2313086a 838
d7f9b689
LC
839 {
840 .name = "boot_set",
841 .args_type = "bootdevice:s",
d7f9b689
LC
842 .params = "bootdevice",
843 .help = "define new values for the boot device list",
2b9e3576 844 .cmd = hmp_boot_set,
d7f9b689
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845 },
846
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847SRST
848``boot_set`` *bootdevicelist*
849 Define new values for the boot device list. Those values will override
850 the values specified on the command line through the ``-boot`` option.
851
852 The values that can be specified here depend on the machine type, but are
853 the same that can be specified in the ``-boot`` command line option.
854ERST
2313086a 855
d7f9b689
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856 {
857 .name = "nmi",
e9b4b432
LC
858 .args_type = "",
859 .params = "",
9cb805fd 860 .help = "inject an NMI",
2b9e3576 861 .cmd = hmp_nmi,
d7f9b689 862 },
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863SRST
864``nmi`` *cpu*
865 Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
866ERST
1f590cf9
LL
867
868 {
3949e594 869 .name = "ringbuf_write",
1f590cf9
LL
870 .args_type = "device:s,data:s",
871 .params = "device data",
3949e594 872 .help = "Write to a ring buffer character device",
2b9e3576 873 .cmd = hmp_ringbuf_write,
8e597779 874 .command_completion = ringbuf_write_completion,
1f590cf9
LL
875 },
876
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877SRST
878``ringbuf_write`` *device* *data*
879 Write *data* to ring buffer character device *device*.
880 *data* must be a UTF-8 string.
881ERST
49b6d722
LL
882
883 {
3949e594 884 .name = "ringbuf_read",
49b6d722
LL
885 .args_type = "device:s,size:i",
886 .params = "device size",
3949e594 887 .help = "Read from a ring buffer character device",
2b9e3576 888 .cmd = hmp_ringbuf_read,
8e597779 889 .command_completion = ringbuf_write_completion,
49b6d722
LL
890 },
891
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892SRST
893``ringbuf_read`` *device*
894 Read and print up to *size* bytes from ring buffer character
895 device *device*.
896 Certain non-printable characters are printed ``\uXXXX``, where ``XXXX`` is the
897 character code in hexadecimal. Character ``\`` is printed ``\\``.
898 Bug: can screw up when the buffer contains invalid UTF-8 sequences,
899 NUL characters, after the ring buffer lost data, and when reading
900 stops because the size limit is reached.
901ERST
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902
903 {
904 .name = "announce_self",
c6644548
DDAG
905 .args_type = "interfaces:s?,id:s?",
906 .params = "[interfaces] [id]",
544f6ea3
DDAG
907 .help = "Trigger GARP/RARP announcements",
908 .cmd = hmp_announce_self,
909 },
910
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911SRST
912``announce_self``
913 Trigger a round of GARP/RARP broadcasts; this is useful for explicitly
914 updating the network infrastructure after a reconfiguration or some forms
915 of migration. The timings of the round are set by the migration announce
916 parameters. An optional comma separated *interfaces* list restricts the
917 announce to the named set of interfaces. An optional *id* can be used to
918 start a separate announce timer and to change the parameters of it later.
919ERST
2313086a 920
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921 {
922 .name = "migrate",
7a4da28b
PX
923 .args_type = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
924 .params = "[-d] [-b] [-i] [-r] uri",
fbc3d96c
LS
925 .help = "migrate to URI (using -d to not wait for completion)"
926 "\n\t\t\t -b for migration without shared storage with"
927 " full copy of disk\n\t\t\t -i for migration without "
928 "shared storage with incremental copy of disk "
7a4da28b
PX
929 "(base image shared between src and destination)"
930 "\n\t\t\t -r to resume a paused migration",
2b9e3576 931 .cmd = hmp_migrate,
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932 },
933
fbc3d96c 934
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935SRST
936``migrate [-d] [-b] [-i]`` *uri*
937 Migrate to *uri* (using -d to not wait for completion).
938
939 ``-b``
940 for migration with full copy of disk
941 ``-i``
942 for migration with incremental copy of disk (base image is shared)
943ERST
2313086a 944
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945 {
946 .name = "migrate_cancel",
947 .args_type = "",
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948 .params = "",
949 .help = "cancel the current VM migration",
2b9e3576 950 .cmd = hmp_migrate_cancel,
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951 },
952
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953SRST
954``migrate_cancel``
955 Cancel the current VM migration.
956ERST
9e1ba4cc 957
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958 {
959 .name = "migrate_continue",
960 .args_type = "state:s",
961 .params = "state",
962 .help = "Continue migration from the given paused state",
963 .cmd = hmp_migrate_continue,
964 },
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965SRST
966``migrate_continue`` *state*
967 Continue migration from the paused state *state*
968ERST
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969
970 {
971 .name = "migrate_incoming",
972 .args_type = "uri:s",
973 .params = "uri",
974 .help = "Continue an incoming migration from an -incoming defer",
2b9e3576 975 .cmd = hmp_migrate_incoming,
bf1ae1f4
DDAG
976 },
977
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978SRST
979``migrate_incoming`` *uri*
980 Continue an incoming migration using the *uri* (that has the same syntax
981 as the ``-incoming`` option).
982ERST
bf1ae1f4 983
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984 {
985 .name = "migrate_recover",
986 .args_type = "uri:s",
987 .params = "uri",
988 .help = "Continue a paused incoming postcopy migration",
989 .cmd = hmp_migrate_recover,
990 },
991
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992SRST
993``migrate_recover`` *uri*
994 Continue a paused incoming postcopy migration using the *uri*.
995ERST
d37297dc
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996
997 {
998 .name = "migrate_pause",
999 .args_type = "",
1000 .params = "",
1001 .help = "Pause an ongoing migration (postcopy-only)",
1002 .cmd = hmp_migrate_pause,
1003 },
1004
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1005SRST
1006``migrate_pause``
1007 Pause an ongoing migration. Currently it only supports postcopy.
1008ERST
9e1ba4cc 1009
00458433
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1010 {
1011 .name = "migrate_set_capability",
1012 .args_type = "capability:s,state:b",
1013 .params = "capability state",
1014 .help = "Enable/Disable the usage of a capability for migration",
2b9e3576 1015 .cmd = hmp_migrate_set_capability,
c68a0409 1016 .command_completion = migrate_set_capability_completion,
00458433
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1017 },
1018
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1019SRST
1020``migrate_set_capability`` *capability* *state*
1021 Enable/Disable the usage of a capability *capability* for migration.
1022ERST
50e9a629
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1023
1024 {
1025 .name = "migrate_set_parameter",
69ef1f36 1026 .args_type = "parameter:s,value:s",
50e9a629
LL
1027 .params = "parameter value",
1028 .help = "Set the parameter for migration",
2b9e3576 1029 .cmd = hmp_migrate_set_parameter,
50e9a629
LL
1030 .command_completion = migrate_set_parameter_completion,
1031 },
1032
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1033SRST
1034``migrate_set_parameter`` *parameter* *value*
1035 Set the parameter *parameter* for migration.
1036ERST
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1037
1038 {
1039 .name = "migrate_start_postcopy",
1040 .args_type = "",
1041 .params = "",
a54d340b 1042 .help = "Followup to a migration command to switch the migration"
32c3db5b 1043 " to postcopy mode. The postcopy-ram capability must "
c2eb7f21
GK
1044 "be set on both source and destination before the "
1045 "original migration command .",
2b9e3576 1046 .cmd = hmp_migrate_start_postcopy,
4886a1bc
DDAG
1047 },
1048
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1049SRST
1050``migrate_start_postcopy``
1051 Switch in-progress migration to postcopy mode. Ignored after the end of
1052 migration (or once already in postcopy).
1053ERST
d89e666e 1054
51e47cf8 1055#ifdef CONFIG_REPLICATION
d89e666e
HZ
1056 {
1057 .name = "x_colo_lost_heartbeat",
1058 .args_type = "",
1059 .params = "",
1060 .help = "Tell COLO that heartbeat is lost,\n\t\t\t"
1061 "a failover or takeover is needed.",
1062 .cmd = hmp_x_colo_lost_heartbeat,
1063 },
51e47cf8 1064#endif
d89e666e 1065
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1066SRST
1067``x_colo_lost_heartbeat``
1068 Tell COLO that heartbeat is lost, a failover or takeover is needed.
1069ERST
f8882568
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1070
1071 {
2ea720db
JS
1072 .name = "client_migrate_info",
1073 .args_type = "protocol:s,hostname:s,port:i?,tls-port:i?,cert-subject:s?",
1074 .params = "protocol hostname port tls-port cert-subject",
13cadefb 1075 .help = "set migration information for remote display",
2b9e3576 1076 .cmd = hmp_client_migrate_info,
f8882568
JS
1077 },
1078
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1079SRST
1080``client_migrate_info`` *protocol* *hostname* *port* *tls-port* *cert-subject*
1081 Set migration information for remote display. This makes the server
1082 ask the client to automatically reconnect using the new parameters
1083 once migration finished successfully. Only implemented for SPICE.
1084ERST
e866e239 1085
783e9b48
WC
1086 {
1087 .name = "dump-guest-memory",
2da91b54
VP
1088 .args_type = "paging:-p,detach:-d,windmp:-w,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:l?,length:l?",
1089 .params = "[-p] [-d] [-z|-l|-s|-w] filename [begin length]",
c20499d9
QN
1090 .help = "dump guest memory into file 'filename'.\n\t\t\t"
1091 "-p: do paging to get guest's memory mapping.\n\t\t\t"
228de9cf 1092 "-d: return immediately (do not wait for completion).\n\t\t\t"
1b7a0f75
QN
1093 "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
1094 "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
1095 "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
2da91b54 1096 "-w: dump in Windows crashdump format (can be used instead of ELF-dump converting),\n\t\t\t"
f5daa829 1097 " for Windows x86 and x64 guests with vmcoreinfo driver only.\n\t\t\t"
c20499d9
QN
1098 "begin: the starting physical address.\n\t\t\t"
1099 "length: the memory size, in bytes.",
2b9e3576 1100 .cmd = hmp_dump_guest_memory,
783e9b48
WC
1101 },
1102
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1103SRST
1104``dump-guest-memory [-p]`` *filename* *begin* *length*
1105 \
1106``dump-guest-memory [-z|-l|-s|-w]`` *filename*
1107 Dump guest memory to *protocol*. The file can be processed with crash or
1108 gdb. Without ``-z|-l|-s|-w``, the dump format is ELF.
1109
1110 ``-p``
1111 do paging to get guest's memory mapping.
1112 ``-z``
1113 dump in kdump-compressed format, with zlib compression.
1114 ``-l``
1115 dump in kdump-compressed format, with lzo compression.
1116 ``-s``
1117 dump in kdump-compressed format, with snappy compression.
1118 ``-w``
1119 dump in Windows crashdump format (can be used instead of ELF-dump converting),
1120 for Windows x64 guests with vmcoreinfo driver only
1121 *filename*
1122 dump file name.
1123 *begin*
1124 the starting physical address. It's optional, and should be
1125 specified together with *length*.
1126 *length*
1127 the memory size, in bytes. It's optional, and should be specified
1128 together with *begin*.
1129
1130ERST
783e9b48 1131
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1132#if defined(TARGET_S390X)
1133 {
1134 .name = "dump-skeys",
1135 .args_type = "filename:F",
1136 .params = "",
1137 .help = "Save guest storage keys into file 'filename'.\n",
2b9e3576 1138 .cmd = hmp_dump_skeys,
a4538a5c
JH
1139 },
1140#endif
1141
a6b30bca
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1142SRST
1143``dump-skeys`` *filename*
1144 Save guest storage keys to a file.
1145ERST
f860d497
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1146
1147#if defined(TARGET_S390X)
1148 {
1149 .name = "migration_mode",
1150 .args_type = "mode:i",
1151 .params = "mode",
1152 .help = "Enables or disables migration mode\n",
1153 .cmd = hmp_migrationmode,
1154 },
1155#endif
1156
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1157SRST
1158``migration_mode`` *mode*
1159 Enables or disables migration mode.
1160ERST
a4538a5c 1161
e866e239 1162 {
2ea720db 1163 .name = "snapshot_blkdev",
6cc2a415
PB
1164 .args_type = "reuse:-n,device:B,snapshot-file:s?,format:s?",
1165 .params = "[-n] device [new-image-file] [format]",
2ea720db
JS
1166 .help = "initiates a live snapshot\n\t\t\t"
1167 "of device. If a new image file is specified, the\n\t\t\t"
1168 "new image file will become the new root image.\n\t\t\t"
1169 "If format is specified, the snapshot file will\n\t\t\t"
775ca88e 1170 "be created in that format.\n\t\t\t"
6cc2a415
PB
1171 "The default format is qcow2. The -n flag requests QEMU\n\t\t\t"
1172 "to reuse the image found in new-image-file, instead of\n\t\t\t"
1173 "recreating it from scratch.",
2b9e3576 1174 .cmd = hmp_snapshot_blkdev,
e866e239
GH
1175 },
1176
a6b30bca
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1177SRST
1178``snapshot_blkdev``
1179 Snapshot device, using snapshot file as target if provided
1180ERST
775ca88e
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1181
1182 {
1183 .name = "snapshot_blkdev_internal",
1184 .args_type = "device:B,name:s",
1185 .params = "device name",
1186 .help = "take an internal snapshot of device.\n\t\t\t"
1187 "The format of the image used by device must\n\t\t\t"
1188 "support it, such as qcow2.\n\t\t\t",
2b9e3576 1189 .cmd = hmp_snapshot_blkdev_internal,
775ca88e
WX
1190 },
1191
a6b30bca
PM
1192SRST
1193``snapshot_blkdev_internal``
1194 Take an internal snapshot on device if it support
1195ERST
7a4ed2ee
WX
1196
1197 {
1198 .name = "snapshot_delete_blkdev_internal",
1199 .args_type = "device:B,name:s,id:s?",
1200 .params = "device name [id]",
1201 .help = "delete an internal snapshot of device.\n\t\t\t"
1202 "If id is specified, qemu will try delete\n\t\t\t"
1203 "the snapshot matching both id and name.\n\t\t\t"
1204 "The format of the image used by device must\n\t\t\t"
1205 "support it, such as qcow2.\n\t\t\t",
2b9e3576 1206 .cmd = hmp_snapshot_delete_blkdev_internal,
7a4ed2ee
WX
1207 },
1208
a6b30bca
PM
1209SRST
1210``snapshot_delete_blkdev_internal``
1211 Delete an internal snapshot on device if it support
1212ERST
d9b902db
PB
1213
1214 {
1215 .name = "drive_mirror",
1216 .args_type = "reuse:-n,full:-f,device:B,target:s,format:s?",
1217 .params = "[-n] [-f] device target [format]",
1218 .help = "initiates live storage\n\t\t\t"
1219 "migration for a device. The device's contents are\n\t\t\t"
1220 "copied to the new image file, including data that\n\t\t\t"
1221 "is written after the command is started.\n\t\t\t"
1222 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1223 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1224 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
1225 "so that the result does not need a backing file.\n\t\t\t",
2b9e3576 1226 .cmd = hmp_drive_mirror,
d9b902db 1227 },
a6b30bca
PM
1228SRST
1229``drive_mirror``
1230 Start mirroring a block device's writes to a new destination,
1231 using the specified target.
1232ERST
de90930a
SH
1233
1234 {
1235 .name = "drive_backup",
13b9414b
PB
1236 .args_type = "reuse:-n,full:-f,compress:-c,device:B,target:s,format:s?",
1237 .params = "[-n] [-f] [-c] device target [format]",
de90930a
SH
1238 .help = "initiates a point-in-time\n\t\t\t"
1239 "copy for a device. The device's contents are\n\t\t\t"
1240 "copied to the new image file, excluding data that\n\t\t\t"
1241 "is written after the command is started.\n\t\t\t"
1242 "The -n flag requests QEMU to reuse the image found\n\t\t\t"
1243 "in new-image-file, instead of recreating it from scratch.\n\t\t\t"
1244 "The -f flag requests QEMU to copy the whole disk,\n\t\t\t"
13b9414b
PB
1245 "so that the result does not need a backing file.\n\t\t\t"
1246 "The -c flag requests QEMU to compress backup data\n\t\t\t"
1247 "(if the target format supports it).\n\t\t\t",
2b9e3576 1248 .cmd = hmp_drive_backup,
de90930a 1249 },
a6b30bca
PM
1250SRST
1251``drive_backup``
e3a6e0da 1252 Start a point-in-time copy of a block device to a specified target.
a6b30bca 1253ERST
2313086a 1254
d7f9b689
LC
1255 {
1256 .name = "drive_add",
abb21ac3
KW
1257 .args_type = "node:-n,pci_addr:s,opts:s",
1258 .params = "[-n] [[<domain>:]<bus>:]<slot>\n"
d7f9b689 1259 "[file=file][,if=type][,bus=n]\n"
fb0490f6 1260 "[,unit=m][,media=d][,index=i]\n"
fb0490f6
SH
1261 "[,snapshot=on|off][,cache=on|off]\n"
1262 "[,readonly=on|off][,copy-on-read=on|off]",
d7f9b689 1263 .help = "add drive to PCI storage controller",
2b9e3576 1264 .cmd = hmp_drive_add,
d7f9b689 1265 },
d7f9b689 1266
a6b30bca
PM
1267SRST
1268``drive_add``
1269 Add drive to PCI storage controller.
1270ERST
2ae63bda
IY
1271
1272 {
1273 .name = "pcie_aer_inject_error",
1274 .args_type = "advisory_non_fatal:-a,correctable:-c,"
1275 "id:s,error_status:s,"
1276 "header0:i?,header1:i?,header2:i?,header3:i?,"
1277 "prefix0:i?,prefix1:i?,prefix2:i?,prefix3:i?",
1278 .params = "[-a] [-c] id "
1279 "<error_status> [<tlp header> [<tlp header prefix>]]",
1280 .help = "inject pcie aer error\n\t\t\t"
1281 " -a for advisory non fatal error\n\t\t\t"
1282 " -c for correctable error\n\t\t\t"
1283 "<id> = qdev device id\n\t\t\t"
1284 "<error_status> = error string or 32bit\n\t\t\t"
8ad4e451
ZY
1285 "<tlp header> = 32bit x 4\n\t\t\t"
1286 "<tlp header prefix> = 32bit x 4",
2b9e3576 1287 .cmd = hmp_pcie_aer_inject_error,
2ae63bda
IY
1288 },
1289
a6b30bca
PM
1290SRST
1291``pcie_aer_inject_error``
1292 Inject PCIe AER error
1293ERST
ae82d324
MA
1294
1295 {
1296 .name = "netdev_add",
1297 .args_type = "netdev:O",
5166fe0a 1298 .params = "[user|tap|socket|stream|dgram|vde|bridge|hubport|netmap|vhost-user"
cb039ef3
IM
1299#ifdef CONFIG_AF_XDP
1300 "|af-xdp"
1301#endif
fd8c8c05
VY
1302#ifdef CONFIG_VMNET
1303 "|vmnet-host|vmnet-shared|vmnet-bridged"
1304#endif
1305 "],id=str[,prop=value][,...]",
ae82d324 1306 .help = "add host network device",
2b9e3576 1307 .cmd = hmp_netdev_add,
b162b49a 1308 .command_completion = netdev_add_completion,
48f596c5 1309 .flags = "p",
ae82d324
MA
1310 },
1311
a6b30bca
PM
1312SRST
1313``netdev_add``
1314 Add host network device.
1315ERST
ae82d324
MA
1316
1317 {
1318 .name = "netdev_del",
1319 .args_type = "id:s",
1320 .params = "id",
1321 .help = "remove host network device",
2b9e3576 1322 .cmd = hmp_netdev_del,
11b389f2 1323 .command_completion = netdev_del_completion,
48f596c5 1324 .flags = "p",
ae82d324
MA
1325 },
1326
a6b30bca
PM
1327SRST
1328``netdev_del``
1329 Remove host network device.
1330ERST
cff8b2c6
PB
1331
1332 {
1333 .name = "object_add",
da0a932b 1334 .args_type = "object:S",
cff8b2c6
PB
1335 .params = "[qom-type=]type,id=str[,prop=value][,...]",
1336 .help = "create QOM object",
2b9e3576 1337 .cmd = hmp_object_add,
bfa40f77 1338 .command_completion = object_add_completion,
9e33013b 1339 .flags = "p",
cff8b2c6
PB
1340 },
1341
a6b30bca
PM
1342SRST
1343``object_add``
1344 Create QOM object.
1345ERST
ab2d0531
PB
1346
1347 {
1348 .name = "object_del",
1349 .args_type = "id:s",
1350 .params = "id",
1351 .help = "destroy QOM object",
2b9e3576 1352 .cmd = hmp_object_del,
bfa40f77 1353 .command_completion = object_del_completion,
9e33013b 1354 .flags = "p",
ab2d0531
PB
1355 },
1356
a6b30bca
PM
1357SRST
1358``object_del``
1359 Destroy QOM object.
1360ERST
2313086a
BS
1361
1362#ifdef CONFIG_SLIRP
d7f9b689
LC
1363 {
1364 .name = "hostfwd_add",
b4983c57
TH
1365 .args_type = "arg1:s,arg2:s?",
1366 .params = "[netdev_id] [tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport",
d7f9b689 1367 .help = "redirect TCP or UDP connections from host to guest (requires -net user)",
2b9e3576 1368 .cmd = hmp_hostfwd_add,
d7f9b689 1369 },
21413d68 1370#endif
a6b30bca
PM
1371SRST
1372``hostfwd_add``
1373 Redirect TCP or UDP connections from host to guest (requires -net user).
1374ERST
d7f9b689 1375
21413d68 1376#ifdef CONFIG_SLIRP
d7f9b689
LC
1377 {
1378 .name = "hostfwd_remove",
b4983c57
TH
1379 .args_type = "arg1:s,arg2:s?",
1380 .params = "[netdev_id] [tcp|udp]:[hostaddr]:hostport",
d7f9b689 1381 .help = "remove host-to-guest TCP or UDP redirection",
2b9e3576 1382 .cmd = hmp_hostfwd_remove,
d7f9b689
LC
1383 },
1384
2313086a 1385#endif
a6b30bca
PM
1386SRST
1387``hostfwd_remove``
1388 Remove host-to-guest TCP or UDP redirection.
1389ERST
2313086a 1390
d7f9b689
LC
1391 {
1392 .name = "balloon",
3b0bd6ec 1393 .args_type = "value:M",
d7f9b689 1394 .params = "target",
3c05613a 1395 .help = "request VM to change its memory allocation (in MB)",
2b9e3576 1396 .cmd = hmp_balloon,
d7f9b689
LC
1397 },
1398
a6b30bca
PM
1399SRST
1400``balloon`` *value*
1401 Request VM to change its memory allocation to *value* (in MB).
1402ERST
2313086a 1403
d7f9b689
LC
1404 {
1405 .name = "set_link",
c9b26a4c
MA
1406 .args_type = "name:s,up:b",
1407 .params = "name on|off",
d7f9b689 1408 .help = "change the link status of a network adapter",
2b9e3576 1409 .cmd = hmp_set_link,
40d19394 1410 .command_completion = set_link_completion,
d7f9b689
LC
1411 },
1412
a6b30bca
PM
1413SRST
1414``set_link`` *name* ``[on|off]``
1415 Switch link *name* on (i.e. up) or off (i.e. down).
1416ERST
2313086a 1417
d7f9b689
LC
1418 {
1419 .name = "watchdog_action",
1420 .args_type = "action:s",
d7f9b689
LC
1421 .params = "[reset|shutdown|poweroff|pause|debug|none]",
1422 .help = "change watchdog action",
2b9e3576 1423 .cmd = hmp_watchdog_action,
d0ece345 1424 .command_completion = watchdog_action_completion,
d7f9b689
LC
1425 },
1426
a6b30bca
PM
1427SRST
1428``watchdog_action``
1429 Change watchdog action.
1430ERST
2313086a 1431
4057725f
PB
1432 {
1433 .name = "nbd_server_start",
1434 .args_type = "all:-a,writable:-w,uri:s",
1435 .params = "nbd_server_start [-a] [-w] host:port",
1436 .help = "serve block devices on the given host and port",
2b9e3576 1437 .cmd = hmp_nbd_server_start,
f55ba801 1438 .flags = "p",
4057725f 1439 },
a6b30bca
PM
1440SRST
1441``nbd_server_start`` *host*:*port*
1442 Start an NBD server on the given host and/or port. If the ``-a``
1443 option is included, all of the virtual machine's block devices that
1444 have an inserted media on them are automatically exported; in this case,
1445 the ``-w`` option makes the devices writable too.
1446ERST
4057725f
PB
1447
1448 {
1449 .name = "nbd_server_add",
dba49323
EB
1450 .args_type = "writable:-w,device:B,name:s?",
1451 .params = "nbd_server_add [-w] device [name]",
4057725f 1452 .help = "export a block device via NBD",
2b9e3576 1453 .cmd = hmp_nbd_server_add,
f55ba801 1454 .flags = "p",
4057725f 1455 },
a6b30bca
PM
1456SRST
1457``nbd_server_add`` *device* [ *name* ]
1458 Export a block device through QEMU's NBD server, which must be started
1459 beforehand with ``nbd_server_start``. The ``-w`` option makes the
1460 exported device writable too. The export name is controlled by *name*,
1461 defaulting to *device*.
1462ERST
08fb10a7
EB
1463
1464 {
1465 .name = "nbd_server_remove",
1466 .args_type = "force:-f,name:s",
1467 .params = "nbd_server_remove [-f] name",
1468 .help = "remove an export previously exposed via NBD",
1469 .cmd = hmp_nbd_server_remove,
f55ba801 1470 .flags = "p",
08fb10a7 1471 },
a6b30bca
PM
1472SRST
1473``nbd_server_remove [-f]`` *name*
1474 Stop exporting a block device through QEMU's NBD server, which was
1475 previously started with ``nbd_server_add``. The ``-f``
1476 option forces the server to drop the export immediately even if
1477 clients are connected; otherwise the command fails unless there are no
1478 clients.
1479ERST
4057725f
PB
1480
1481 {
1482 .name = "nbd_server_stop",
1483 .args_type = "",
1484 .params = "nbd_server_stop",
1485 .help = "stop serving block devices using the NBD protocol",
2b9e3576 1486 .cmd = hmp_nbd_server_stop,
f55ba801 1487 .flags = "p",
4057725f 1488 },
a6b30bca
PM
1489SRST
1490``nbd_server_stop``
1491 Stop the QEMU embedded NBD server.
1492ERST
4057725f
PB
1493
1494
79c4f6b0 1495#if defined(TARGET_I386)
d7f9b689
LC
1496
1497 {
1498 .name = "mce",
31ce5e0c
JD
1499 .args_type = "broadcast:-b,cpu_index:i,bank:i,status:l,mcg_status:l,addr:l,misc:l",
1500 .params = "[-b] cpu bank status mcgstatus addr misc",
1501 .help = "inject a MCE on the given CPU [and broadcast to other CPUs with -b option]",
2b9e3576 1502 .cmd = hmp_mce,
d7f9b689
LC
1503 },
1504
79c4f6b0 1505#endif
a6b30bca
PM
1506SRST
1507``mce`` *cpu* *bank* *status* *mcgstatus* *addr* *misc*
1508 Inject an MCE on the given CPU (x86 only).
1509ERST
f07918fd 1510
4bf21c7f 1511#ifdef CONFIG_POSIX
d7f9b689
LC
1512 {
1513 .name = "getfd",
1514 .args_type = "fdname:s",
d7f9b689
LC
1515 .params = "getfd name",
1516 .help = "receive a file descriptor via SCM rights and assign it a name",
2b9e3576 1517 .cmd = hmp_getfd,
f55ba801 1518 .flags = "p",
d7f9b689
LC
1519 },
1520
a6b30bca
PM
1521SRST
1522``getfd`` *fdname*
1523 If a file descriptor is passed alongside this command using the SCM_RIGHTS
1524 mechanism on unix sockets, it is stored using the name *fdname* for
1525 later use by other monitor commands.
1526ERST
4bf21c7f 1527#endif
f07918fd 1528
d7f9b689
LC
1529 {
1530 .name = "closefd",
1531 .args_type = "fdname:s",
d7f9b689
LC
1532 .params = "closefd name",
1533 .help = "close a file descriptor previously passed via SCM rights",
2b9e3576 1534 .cmd = hmp_closefd,
f55ba801 1535 .flags = "p",
d7f9b689
LC
1536 },
1537
a6b30bca
PM
1538SRST
1539``closefd`` *fdname*
1540 Close the file descriptor previously assigned to *fdname* using the
1541 ``getfd`` command. This is only needed if the file descriptor was never
1542 used by another monitor command.
1543ERST
a3a55a2e 1544
727f005e
ZYW
1545 {
1546 .name = "block_set_io_throttle",
1547 .args_type = "device:B,bps:l,bps_rd:l,bps_wr:l,iops:l,iops_rd:l,iops_wr:l",
1548 .params = "device bps bps_rd bps_wr iops iops_rd iops_wr",
1549 .help = "change I/O throttle limits for a block drive",
2b9e3576 1550 .cmd = hmp_block_set_io_throttle,
f55ba801 1551 .flags = "p",
727f005e
ZYW
1552 },
1553
a6b30bca
PM
1554SRST
1555``block_set_io_throttle`` *device* *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*
1556 Change I/O throttle limits for a block drive to
1557 *bps* *bps_rd* *bps_wr* *iops* *iops_rd* *iops_wr*.
1558 *device* can be a block device name, a qdev ID or a QOM path.
1559ERST
7572150c
GH
1560
1561 {
1562 .name = "set_password",
675fd3c9
SR
1563 .args_type = "protocol:s,password:s,display:-ds,connected:s?",
1564 .params = "protocol password [-d display] [action-if-connected]",
7572150c 1565 .help = "set spice/vnc password",
2b9e3576 1566 .cmd = hmp_set_password,
7572150c
GH
1567 },
1568
a6b30bca 1569SRST
675fd3c9
SR
1570``set_password [ vnc | spice ] password [ -d display ] [ action-if-connected ]``
1571 Change spice/vnc password. *display* can be used with 'vnc' to specify
1572 which display to set the password on. *action-if-connected* specifies
1573 what should happen in case a connection is established: *fail* makes
1574 the password change fail. *disconnect* changes the password and
8982552e
MA
1575 disconnects the client. *keep* changes the password and keeps the
1576 connection up. *keep* is the default.
a6b30bca 1577ERST
7572150c
GH
1578
1579 {
1580 .name = "expire_password",
675fd3c9
SR
1581 .args_type = "protocol:s,time:s,display:-ds",
1582 .params = "protocol time [-d display]",
7572150c 1583 .help = "set spice/vnc password expire-time",
2b9e3576 1584 .cmd = hmp_expire_password,
7572150c
GH
1585 },
1586
a6b30bca 1587SRST
675fd3c9
SR
1588``expire_password [ vnc | spice ] expire-time [ -d display ]``
1589 Specify when a password for spice/vnc becomes invalid.
1590 *display* behaves the same as in ``set_password``.
1591 *expire-time* accepts:
a6b30bca
PM
1592
1593 ``now``
1594 Invalidate password instantly.
1595 ``never``
1596 Password stays valid forever.
1597 ``+``\ *nsec*
1598 Password stays valid for *nsec* seconds starting now.
1599 *nsec*
1600 Password is invalidated at the given time. *nsec* are the seconds
1601 passed since 1970, i.e. unix epoch.
1602
1603ERST
f1088908 1604
46920825
GH
1605 {
1606 .name = "chardev-add",
1607 .args_type = "args:s",
1608 .params = "args",
1609 .help = "add chardev",
2b9e3576 1610 .cmd = hmp_chardev_add,
13e315da 1611 .command_completion = chardev_add_completion,
46920825
GH
1612 },
1613
a6b30bca
PM
1614SRST
1615``chardev-add`` *args*
1616 chardev-add accepts the same parameters as the -chardev command line switch.
1617ERST
75b60160
AN
1618
1619 {
1620 .name = "chardev-change",
1621 .args_type = "id:s,args:s",
1622 .params = "id args",
1623 .help = "change chardev",
1624 .cmd = hmp_chardev_change,
1625 },
1626
a6b30bca
PM
1627SRST
1628``chardev-change`` *args*
1629 chardev-change accepts existing chardev *id* and then the same arguments
1630 as the -chardev command line switch (except for "id").
1631ERST
46920825
GH
1632
1633 {
1634 .name = "chardev-remove",
1635 .args_type = "id:s",
1636 .params = "id",
1637 .help = "remove chardev",
2b9e3576 1638 .cmd = hmp_chardev_remove,
6297d9a2 1639 .command_completion = chardev_remove_completion,
46920825
GH
1640 },
1641
a6b30bca
PM
1642SRST
1643``chardev-remove`` *id*
1644 Removes the chardev *id*.
1645ERST
bd1d5ad9
SF
1646
1647 {
1648 .name = "chardev-send-break",
1649 .args_type = "id:s",
1650 .params = "id",
1651 .help = "send a break on chardev",
1652 .cmd = hmp_chardev_send_break,
1653 .command_completion = chardev_remove_completion,
1654 },
1655
a6b30bca
PM
1656SRST
1657``chardev-send-break`` *id*
1658 Send a break on the chardev *id*.
1659ERST
587da2c3
KW
1660
1661 {
1662 .name = "qemu-io",
89b6fc45
KW
1663 .args_type = "qdev:-d,device:B,command:s",
1664 .params = "[-d] [device] \"[command]\"",
1665 .help = "run a qemu-io command on a block device\n\t\t\t"
1666 "-d: [device] is a device ID rather than a "
1667 "drive ID or node name",
2b9e3576 1668 .cmd = hmp_qemu_io,
587da2c3
KW
1669 },
1670
a6b30bca
PM
1671SRST
1672``qemu-io`` *device* *command*
1673 Executes a qemu-io command on the given block device.
1674ERST
abf23329 1675
89d7fa9e
AF
1676 {
1677 .name = "qom-list",
1678 .args_type = "path:s?",
1679 .params = "path",
1680 .help = "list QOM properties",
2b9e3576 1681 .cmd = hmp_qom_list,
8c7c7ecb 1682 .flags = "p",
89d7fa9e
AF
1683 },
1684
a6b30bca
PM
1685SRST
1686``qom-list`` [*path*]
1687 Print QOM properties of object at location *path*
1688ERST
c0e6ee9e 1689
89cf4fe3
DDAG
1690 {
1691 .name = "qom-get",
1692 .args_type = "path:s,property:s",
1693 .params = "path property",
1694 .help = "print QOM property",
1695 .cmd = hmp_qom_get,
1696 .flags = "p",
1697 },
1698
1699SRST
1700``qom-get`` *path* *property*
1701 Print QOM property *property* of object at location *path*
1702ERST
1703
c0e6ee9e
AF
1704 {
1705 .name = "qom-set",
2d9e3dd9
DH
1706 .args_type = "json:-j,path:s,property:s,value:S",
1707 .params = "[-j] path property value",
1708 .help = "set QOM property.\n\t\t\t"
1709 "-j: the value is specified in json format.",
2b9e3576 1710 .cmd = hmp_qom_set,
8c7c7ecb 1711 .flags = "p",
c0e6ee9e
AF
1712 },
1713
a6b30bca
PM
1714SRST
1715``qom-set`` *path* *property* *value*
1716 Set QOM property *property* of object at location *path* to value *value*
1717ERST
b40292e7 1718
e7510671
PD
1719 {
1720 .name = "replay_break",
ae49ce00 1721 .args_type = "icount:l",
e7510671
PD
1722 .params = "icount",
1723 .help = "set breakpoint at the specified instruction count",
1724 .cmd = hmp_replay_break,
1725 },
1726
1727SRST
1728``replay_break`` *icount*
1729 Set replay breakpoint at instruction count *icount*.
1730 Execution stops when the specified instruction is reached.
1731 There can be at most one breakpoint. When breakpoint is set, any prior
1732 one is removed. The breakpoint may be set only in replay mode and only
1733 "in the future", i.e. at instruction counts greater than the current one.
1734 The current instruction count can be observed with ``info replay``.
1735ERST
1736
1737 {
1738 .name = "replay_delete_break",
1739 .args_type = "",
1740 .params = "",
1741 .help = "remove replay breakpoint",
1742 .cmd = hmp_replay_delete_break,
1743 },
1744
1745SRST
1746``replay_delete_break``
1747 Remove replay breakpoint which was previously set with ``replay_break``.
1748 The command is ignored when there are no replay breakpoints.
1749ERST
1750
f6baed3d
PD
1751 {
1752 .name = "replay_seek",
ae49ce00 1753 .args_type = "icount:l",
f6baed3d
PD
1754 .params = "icount",
1755 .help = "replay execution to the specified instruction count",
1756 .cmd = hmp_replay_seek,
1757 },
1758
1759SRST
1760``replay_seek`` *icount*
1761 Automatically proceed to the instruction count *icount*, when
1762 replaying the execution. The command automatically loads nearest
1763 snapshot and replays the execution to find the desired instruction.
1764 When there is no preceding snapshot or the execution is not replayed,
1765 then the command fails.
1766 *icount* for the reference may be observed with ``info replay`` command.
1767ERST
1768
a4a571d9
PX
1769 {
1770 .name = "calc_dirty_rate",
826b8bc8
HH
1771 .args_type = "dirty_ring:-r,dirty_bitmap:-b,second:l,sample_pages_per_GB:l?",
1772 .params = "[-r] [-b] second [sample_pages_per_GB]",
1773 .help = "start a round of guest dirty rate measurement (using -r to"
1774 "\n\t\t\t specify dirty ring as the method of calculation and"
1775 "\n\t\t\t -b to specify dirty bitmap as method of calculation)",
a4a571d9
PX
1776 .cmd = hmp_calc_dirty_rate,
1777 },
f3b2e38c
HH
1778
1779SRST
22269b04
DDAG
1780``calc_dirty_rate`` *second*
1781 Start a round of dirty rate measurement with the period specified in *second*.
1782 The result of the dirty rate measurement may be observed with ``info
1783 dirty_rate`` command.
f3b2e38c
HH
1784ERST
1785
1786 {
1787 .name = "set_vcpu_dirty_limit",
1788 .args_type = "dirty_rate:l,cpu_index:l?",
1789 .params = "dirty_rate [cpu_index]",
1790 .help = "set dirty page rate limit, use cpu_index to set limit"
1791 "\n\t\t\t\t\t on a specified virtual cpu",
1792 .cmd = hmp_set_vcpu_dirty_limit,
1793 },
1794
1795SRST
22269b04
DDAG
1796``set_vcpu_dirty_limit``
1797 Set dirty page rate limit on virtual CPU, the information about all the
f3b2e38c
HH
1798 virtual CPU dirty limit status can be observed with ``info vcpu_dirty_limit``
1799 command.
1800ERST
1801
1802 {
1803 .name = "cancel_vcpu_dirty_limit",
1804 .args_type = "cpu_index:l?",
1805 .params = "[cpu_index]",
1806 .help = "cancel dirty page rate limit, use cpu_index to cancel"
1807 "\n\t\t\t\t\t limit on a specified virtual cpu",
1808 .cmd = hmp_cancel_vcpu_dirty_limit,
1809 },
22269b04
DDAG
1810
1811SRST
1812``cancel_vcpu_dirty_limit``
1813 Cancel dirty page rate limit on virtual CPU, the information about all the
1814 virtual CPU dirty limit status can be observed with ``info vcpu_dirty_limit``
1815 command.
1816ERST
1817
1818 {
1819 .name = "info",
1820 .args_type = "item:s?",
1821 .params = "[subcommand]",
1822 .help = "show various information about the system state",
1823 .cmd = hmp_info_help,
1824 .sub_table = hmp_info_cmds,
1825 .flags = "p",
1826 },
bf353ad5
DHB
1827
1828#if defined(CONFIG_FDT)
1829 {
1830 .name = "dumpdtb",
1831 .args_type = "filename:F",
1832 .params = "filename",
1833 .help = "dump the FDT in dtb format to 'filename'",
1834 .cmd = hmp_dumpdtb,
1835 },
1836
1837SRST
1838``dumpdtb`` *filename*
1839 Dump the FDT in dtb format to *filename*.
1840ERST
1841#endif
507cb64d
JM
1842
1843#if defined(CONFIG_XEN_EMU)
1844 {
1845 .name = "xen-event-inject",
1846 .args_type = "port:i",
1847 .params = "port",
1848 .help = "inject event channel",
1849 .cmd = hmp_xen_event_inject,
1850 },
1851
1852SRST
1853``xen-event-inject`` *port*
1854 Notify guest via event channel on port *port*.
1855ERST
1856
1857
1858 {
1859 .name = "xen-event-list",
1860 .args_type = "",
1861 .params = "",
1862 .help = "list event channel state",
1863 .cmd = hmp_xen_event_list,
1864 },
1865
1866SRST
1867``xen-event-list``
1868 List event channels in the guest
1869ERST
1870#endif